To get from the raw diamond to the cut gemstone it requires a skilled
hand of a master cutter.

Proportions are everything. The better the proportions, the better the
diamond handles light to create more sparkle. There are a number of
shapes which diamonds traditionally take, depending on the original
nature of the rough, uncut stone. Oval, round, pear, emerald, heart and
marquise shapes are by far the most popular. It all comes down to what
you like.